<template>
  <div class="sidebar">
    <el-menu class="sidebar-el-menu"
             :default-active="onRoutes"
             :collapse="collapse"
             background-color="#324157"
             text-color="#bfcbd9"
             active-text-color="#20a0ff"
             unique-opened
             router>
      <template v-for="item in items">
        <template v-if="item.subs">
          <el-submenu :index="item.index"
                      :key="item.index">
            <template #title>
              <i :class="item.icon"></i>
              <span>{{ item.title }}</span>
            </template>
            <template v-for="subItem in item.subs">
              <el-submenu v-if="subItem.subs"
                          :index="subItem.index"
                          :key="subItem.index">
                <template #title>{{ subItem.title }}</template>
                <el-menu-item v-for="(threeItem, i) in subItem.subs"
                              :key="i"
                              :index="threeItem.index">
                  {{ threeItem.title }}</el-menu-item>
              </el-submenu>
              <el-menu-item v-else
                            :index="subItem.index"
                            :key="subItem.index">{{ subItem.title }}
              </el-menu-item>
            </template>
          </el-submenu>
        </template>
        <template v-else>
          <el-menu-item :index="item.index"
                        :key="item.index">
            <i :class="item.icon"></i>
            <template #title>{{ item.title }}</template>
          </el-menu-item>
        </template>
      </template>
    </el-menu>
  </div>
</template>

<script>
import { computed, watch } from "vue";
import { useStore } from "vuex";
import { useRoute } from "vue-router";
export default {
  setup() {
    const items = [
      {
        icon: "el-icon-lx-home",
        index: "/index",
        title: "系统首页",
      },
      {
        icon: "el-icon-lx-global",
        index: "/department",
        title: "组织架构",
        subs: [
          {
            index: "/department_tree",
            title: "组织架构图",
          },
          {
            index: "/department_list",
            title: "部门列表",
          },
        ],
      },
      {
        icon: "el-icon-user",
        index: "/staff",
        title: "员工管理",
        subs: [
          {
            index: "/staff_list",
            title: "员工列表",
          },
          {
            index: "/staff_info_list",
            title: "员工信息列表",
          },
        ],
      },
      {
        icon: "el-icon-user-solid",
        index: "/resign",
        title: "离职管理",
        subs: [
          {
            index: "/resign_list",
            title: "辞职申请列表",
          },
          {
            index: "/resign_staff_list",
            title: "离职员工列表",
          },
        ],
      },
      {
        icon: "el-icon-s-custom",
        index: "/pre",
        title: "预入职管理",
        subs: [
          {
            index: "/pre_staff_list",
            title: "候选人列表",
          },
        ],
      },
      {
        icon: "el-icon-date",
        index: "/attendance",
        title: "考勤管理",
        subs: [
          {
            index: "/attendance_list",
            title: "考勤列表",
          },
          {
            index: "/vcation_list",
            title: "休假列表",
          },
          {
            index: "/error_list",
            title: "考勤异常",
          },
        ],
      },
      {
        icon: "el-icon-lx-cascades",
        index: "/table",
        title: "基础表格",
      },
      {
        icon: "el-icon-lx-copy",
        index: "/tabs",
        title: "tab选项卡",
      },
      {
        icon: "el-icon-lx-calendar",
        index: "3",
        title: "表单相关",
        subs: [
          {
            index: "/form",
            title: "基本表单",
          },
          {
            index: "/upload",
            title: "文件上传",
          },
          {
            index: "4",
            title: "三级菜单",
            subs: [
              {
                index: "/editor",
                title: "富文本编辑器",
              },
            ],
          },
        ],
      },
      {
        icon: "el-icon-lx-emoji",
        index: "/icon",
        title: "自定义图标",
      },
      {
        icon: "el-icon-pie-chart",
        index: "/charts",
        title: "schart图表",
      },
      {
        icon: "el-icon-lx-global",
        index: "/i18n",
        title: "国际化功能",
      },
      {
        icon: "el-icon-lx-warn",
        index: "7",
        title: "错误处理",
        subs: [
          {
            index: "/permission",
            title: "权限测试",
          },
          {
            index: "/404",
            title: "404页面",
          },
        ],
      },
      {
        icon: "el-icon-lx-redpacket_fill",
        index: "/donate",
        title: "支持作者",
      },
    ];

    const route = useRoute();

    const onRoutes = computed(() => {
      return route.path;
    });

    const store = useStore();
    const collapse = computed(() => store.state.collapse);

    return {
      items,
      onRoutes,
      collapse,
    };
  },
};
</script>

<style scoped>
.sidebar {
  display: block;
  position: absolute;
  left: 0;
  top: 70px;
  bottom: 0;
  overflow-y: scroll;
}
.sidebar::-webkit-scrollbar {
  width: 0;
}
.sidebar-el-menu:not(.el-menu--collapse) {
  width: 250px;
}
.sidebar > ul {
  height: 100%;
}
</style>
